【摘要】 本文针对磷化铁（FeP₂）气氛下高温退火非掺杂半绝缘磷化铟（IP SI-InP）材料,应用正电子寿命谱及热激电流谱学技术,研究了该材料在电子辐照前后的缺陷情况.研究发现,该材料经电子辐照后缺陷浓度在增大,且形成了复合体的缺陷结构.电子辐照后的正电子湮没平均寿命增加了18 ps,对应的热激电流谱（TSC）也出现了相应的缺陷峰.本文还对缺陷的特性、影响材料的性能等进行了简要的论述.更多还原

【Abstract】 The positron annihilation lifetime spectroscopy (PAL) and thermally stimulated current spectroscopy (TSC) have been employed to study defects before and after electron irradiation in InP which has undergone a high-temperature annealing in iron phosphide ambience. It is found that the concentration of defects in SI-InP after electron irradiation increases and the complex defects are formed as well. The positron mean lifetimeτ_m increases about 18ps and more defect peaks are also found in the TSC after irradiation. The characterization of defects and the influence of defects on material property are discussed simply in this paper.更多还原